MERLIN LEGENDCommunications System Release 6.1
System Planning
555-661-112
Issue 1
August 1998
Lines/Trunks
Page 3-20Selecting Line/Trunk Options
3
3. Under the Automatic Callback heading at the top of Form 3a, check
one
of
the following:
■ If you do not want remote callers to use the Automatic Callback
feature, check Disable (factory setting).
■ To allow remote callers to use this feature, check Enable.
NOTE:
Private network calls to Remote Access cannot use the
Automatic Callback feature.
4. Under the Barrier Required for Private Network Tie Trunks heading, check
one
of the following:
■ If any of the following conditions apply, check Yes.
— You plan to assign barrier codes to these trunks.
— Private network Tie calls are allowed access to PSTN trunks
using ARS.
— Private network Tie calls pass through the system (use
Tandem switching).
■ If no barrier codes are planned for these trunks, check No.
!
SecurityAlert:
To help prevent toll fraud, barrier codes should always be assigned. The
barrier codes should also be the maximum length allowed.
5. Under the Barrier Codes Required for Non-Tie Trunks (DID, PRI private
network calls, and PRI Dial-Plan routing) heading, check
one
of the
following:
■ If any of the following conditions apply, check Yes.
— You plan to assign barrier codes to these trunks.
— Private network PRI calls are allowed access to PSTN trunks
using ARS.
— Private network PRI calls pass through the system (use
Tandem switching).
■ If no barrier codes are planned for these trunks, check No.
!
SecurityAlert:
To help prevent toll fraud, barrier codes should always be assigned. The
barrier codes should also be the maximum length allowed.
